Electric leakage tripping operation mechanism of circuit breaker

Abstract

The utility model relates to an electric leakage tripping operation mechanism of a circuit breaker, which comprises a base, a tripping rod arranged on the base, a reset assembly arranged on one side of the tripping rod and an electric leakage tripping assembly arranged on the other side of the tripping rod. The base is provided with a placing groove for installation corresponding to the electric leakage tripping assembly. According to the utility model, through the design of the reset button, a user can directly carry out closing and opening operations without complicated steps or tools, the convenience and the friendliness of the operation are greatly improved, and when faults such as electric leakage occur, the coil can rapidly sense current change and attract the iron core, so that the tripping rod is driven to rotate to realize opening; and the stability and the reliability of the tripping rod in the switching-on and switching-off processes are ensured by introducing the reset spring and the iron core spring.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a leakage tripping operating mechanism of a circuit breaker. Background Art

[0002] As a key electrical switching device, the core responsibility of the circuit breaker is to protect the safe operation of the circuit. Among them, the leakage trip operating mechanism, as an important component of the circuit breaker, directly determines the reaction speed and operating convenience of the circuit breaker when the circuit is abnormal. When a traditional circuit breaker has a fault such as leakage, it usually cuts off the circuit by opening the switch to prevent further damage. However, after the fault is resolved, restoring the normal state of the circuit usually requires manual operation or power-on, which not only increases the complexity of the operation, but also may reduce work efficiency. Especially in an emergency, cumbersome operations may delay the recovery time of the circuit, which will have an adverse effect on the normal operation of the equipment and the stability of the system. Utility Model Content

[0003] In view of this, an object of the utility model is to provide a leakage tripping operating mechanism for a circuit breaker which is simple to operate and works stably and reliably.

[0004] In order to achieve the above purpose, the utility model adopts a leakage trip operating mechanism of a circuit breaker, including a base, a trip rod arranged on the base, a reset assembly arranged on one side of the trip rod, and a leakage trip assembly arranged on the other side of the trip rod, the base corresponding to the reset assembly is provided with a accommodating groove for sliding installation, and the base corresponding to the leakage trip assembly is provided with a placement groove for installation.

[0005] The utility model is further configured that the reset component includes a reset button installed in the accommodating groove, the reset button is formed with a slot at one end corresponding to the tripping rod, the upper end of the base corresponding to the slot is provided with a boss, and the reset button is provided with a reset compression spring, one end of the reset compression spring abuts against the boss, and the other end abuts against the reset button.

[0006] The utility model is further configured that the leakage trip assembly includes a coil installed in a placement groove and an iron core arranged in the coil, a notch is opened on one side of the coil corresponding to the trip rod, an iron core shaft disk is formed at one end of the iron core extending out of the notch and clamped with the trip rod, a spring shaft is formed at the other end of the iron core, and an iron core spring is wound around the spring shaft.

[0007] The utility model is further arranged that the tripping rod is connected to the base through a shaft.

[0008] Compared with the prior art, the beneficial effect of the utility model is that by designing a reset button, the user can directly perform closing and opening operations without complicated steps or tools, which greatly improves the convenience and friendliness of operation. When a fault such as leakage occurs, the coil can quickly sense the current change and attract the iron core, thereby driving the trip rod to rotate and achieve opening. The introduction of the reset spring and the iron core spring ensures the stability and reliability of the trip rod during the closing and opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the switch-off structure of an embodiment of the utility model.

[0010] Figure 2 It is an exploded schematic diagram of the reset assembly and the base of the embodiment of the utility model.

[0011] Figure 3 It is an exploded schematic diagram of the leakage release assembly of the embodiment of the utility model.

[0012] Figure 4 It is an exploded schematic diagram of the leakage release assembly and the base of the embodiment of the utility model.

[0013] Figure 5 It is a schematic diagram of the closing structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0014] like Figure 1-Figure 5 As shown, an embodiment of the utility model provides a leakage tripping operating mechanism of a circuit breaker, comprising a base 1, a tripping rod 2 arranged on the base 1, a reset assembly 3 arranged on one side of the tripping rod 2, and a leakage tripping assembly 4 arranged on the other side of the tripping rod 2. The base 1 is provided with a receiving groove 11 for sliding installation corresponding to the reset assembly 3, and the base 1 is provided with a placement groove 12 for fixed installation corresponding to the leakage tripping assembly 4. The tripping rod 2 and the base 1 are connected by a shaft 5. The reset assembly 3 includes a reset button 31 installed in the receiving groove 11. The reset button 31 is formed with a slot 32 at one end corresponding to the tripping rod 2. The upper end of the base 1 corresponding to the slot 32 is provided with a boss 13, and the reset button 31 is provided with a reset button 31. The reset compression spring 33 has one end that abuts against the boss 13, and the other end that abuts against the reset button 31. The leakage trip assembly 4 includes a coil 41 installed in the placement groove 12, and an iron core 42 arranged in the coil 41. A notch 40 is provided on one side of the coil 41 corresponding to the trip rod 2. An iron core shaft disk 43 is formed at one end of the iron core 42 that extends out of the notch 40 and is engaged with the trip rod 2. A spring shaft 44 is formed at the other end of the iron core 42. An iron core spring 45 is wound around the spring shaft 44. One end of the iron core spring 45 abuts against the spring shaft 44, and the other end abuts against the coil 41. The iron core spring 45 is currently in a compressed state in the open state, and is in a relaxed state in the closed state.

[0015] Of course, in addition to the above-mentioned embodiments, the utility model may also have many other embodiments. Without departing from the essential technical solution content of the utility model, technical personnel familiar with the field may make various corresponding changes and deformations according to the utility model, and these changes or deformations are equivalent to the technical solution in this patent. Then these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the utility model, and the utility model creation is in line with the applicant's actual R&D capabilities and resource conditions.

Claims

1. A leakage tripping operating mechanism for a circuit breaker, characterized in that: It includes a base, a trip rod arranged on the base, a reset component arranged on one side of the trip rod, and a leakage trip component arranged on the other side of the trip rod. The base is provided with a accommodating groove for sliding installation corresponding to the reset component, and the base is provided with a placement groove for installation corresponding to the leakage trip component.

2. The leakage tripping operating mechanism of the circuit breaker according to claim 1, characterized in that: The reset assembly includes a reset button installed in the accommodating groove, the reset button is formed with a slot at one end corresponding to the tripping rod, the upper end of the base corresponding to the slot is provided with a boss, and a reset compression spring is provided in the reset button, one end of the reset compression spring abuts against the boss, and the other end abuts against the reset button.

3. The leakage tripping operating mechanism of the circuit breaker according to claim 1 or 2, characterized in that: The leakage trip assembly includes a coil installed in a placement slot and an iron core arranged in the coil. A notch is opened on one side of the coil corresponding to the trip rod. An iron core shaft disk is formed at one end of the iron core extending out of the notch and clamped with the trip rod. A spring shaft is formed at the other end of the iron core, and an iron core spring is wound around the spring shaft.

4. The leakage tripping operating mechanism of the circuit breaker according to claim 3, characterized in that: The tripping rod is connected to the base via a shaft.

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